View ncp302-ncp303-series datasheet:

NCP302, NCP303 Voltage Detector Series with Programmable Delay The NCP302 and NCP303 series are second generation ultra-low current voltage detectors that contain a programmable time delay generator. These devices are specifically designed for use as reset http://onsemi.com controllers in portable microprocessor based systems where extended battery life is paramount. MARKING Each series features a highly accurate undervoltage detector with DIAGRAM hysteresis and an externally programmable time delay generator. This combination of features prevents erratic system reset operation. 5 The NCP302 series consists of complementary output devices that TSOP-5/ xxx AYWG are available with either an active high or active low reset. The 5 SOT23-5 G NCP303 series has an open drai